400 CLASSIFICATION OK THE CAKAB1D.E 



angustato, et lateribus sinuato, basi valde trail sversim impresso et utrinque exarato, angulis postici3 

 rectis, elytris elongatis, ellipticis, 10-striatis, striis profuntle crenatis, 9" a indistincta ; ore antennisque 

 rufo-piceis. Lung. '38. 



A very distinct and singular species, of which I found one specimen in Habersham Co,. 

 Georgia. The basal impressions of the thorax in the other species are small and lost in 

 the deep transverse impression; in this they are long and deep. 



Calosoma Fubr. 

 Having inadvertently named a remarkable species of this genus C. angulatum, (Ann. 

 Lye. 5, 1 99,) I now propose to change the name to C. prominens, the name first given 

 being preoccupied by Chevrolat for a Mexican species, which also has the sides of the 

 thorax strongly angulated. The two following species are new: 



1. C. lugubrc, nigrum, nitidum, fronte parce punctata, thorace brevi, lateribus subangulatim 

 valdc rotundatis, basi truncate-, utrinque late impresso, clytris thorace sesqui latioribus, seriatim punc- 

 tatis, punctis versus basin maioribus, et rugia transversis coniunctis. Long. 1*08. 



One male, from New Braunfels, Texas, collected by Mr. Lindheimer. This species has 

 the form of C. triste Lcc, but is much larger; the thorax is more suddenly rounded on 

 the sides, and the three series of impressed fovere of the elytra are scarcely to be traced; 

 the large punctures of the anterior fourth of the elytra are very conspicuous; all the tibia> 

 are straight. 



2. C. ma crura, elongatum, nigrum, nitidum, fronte parce punctata, tliorace latitudine sesqui 

 brcviore, antrorsum angustato, lateribus rotundatis, postice latius subreflexis, purpurascentibus, basi 

 truncato, utrinque late impresso, elytris thorace vix latioribus, purpureo-marginatis, vix obsolctissime 

 striatis et punctis triplici serie impressis, ante medium vage grosse punctatis. Long. 1'05. 



Texas; Lieut. Ilaldeman and Mr. Lindheimer. This species has the same form as C. 

 externum (Carab. extern. Say; Calos. longipenne Dej.) It is remarkable for the almost 

 entire absence of the usual stria 1 and fovea>: the tibia are straight in both sexes. The 

 elytra of the male are not wider than the thorax; those of the female are about one third 

 wider. 



Nebria Lair. 



N. Rathvoni, nigra deprcssa, tliorace transverso, marginato, postice magis angustato, lateribus 

 anticc valde rotundatis, postice sinuatis, basi punctulato, utrinque impresso, angulis posticis rectis, 

 elytris oblongo-ovatis, striis obsolete punctulatis, interstiti.o 3'° punctis tribus, 7'"° punctis quinque im- 

 pressis. Long. '48. 



Sacramento, California; one specimen collected by Mr. Child and given me by Mr. S. 

 S. Rathvon. This species resembles in form N. Sahlbergii Fisch., but is larger; the 

 thorax is more narrowed behind, and more sinuate on the sides: the stria) of the elytra are 

 deeper, and the punctures are altogether differently placed: in N. Sahlbergii the 3d in- 

 terstice has five punctures and the 7th none. 



Opisthius Kirbi/. 

 The locality of this singular insect is Oregon, specimens having been brought from there 



